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Service bulletins for the 2005 Chevrolet Avalanche

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

763 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
34242005-11-02. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). ELECTRONIC TRANSFER CASE UNABLE TO COMPLETE SHIFT. *TT
34882005-11-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. FLUID LEAKAGE FRONT PUMP OR TORQUE CONVERTER AREA. *TT
32602005-10-26. Service bulletin. POWER TRAIN. 4L80E/4L85E HARSH SHIFT OR SLIP NO TCC APPLY. *TT
3438A2005-10-24. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. TCC SURGE AND/OR FLUID CONTAMINATION. *TT
34392005-10-21. Service bulletin. POWER TRAIN. NO DRIVE IN D4 OR D3. TO INCLUDE 2005 GMC JIMMY. *TT
35262005-09-22. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). INTERMITTENT SERVICE 4WD LIGHT COMES ON WITH DIAGNOSTIC TROUBLE CODE (DTC) C0306 OR C0308 STORED IN TCCM. *TT
050232005-07-14. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:SHIFT PATTERN INDICATOR. SHIFT LEVER POSITION INDICATOR ILLUMINATION RECALL CAMPAIGN. *TT
33642005-05-12. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. REAR AXLE RETAINER BUTTON BREAKAGE. *EH
33712005-05-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 4L80E/4L85E AUTOMATIC TRANSMISSION LEAK CONCERN. *TT
33692005-05-11. Service bulletin. POWER TRAIN. TO BETTER UNDERSTAND SPRAG DAMAGE AN ENGINEERING INVESTIGATION IS BEING CONDUCTED. TYPICAL SYMPTOMS INCLUDE NO FORWARD MOVEMENT IN D4 OR D3 SHIFT LEVER POSITION. MOVEMENT CAN BE OBTAINED IN D2, D1 OR REVERSE. *TT
33632005-05-11. Service bulletin. POWER TRAIN. 4L60E/4L65E NO REVERSE. *TT
3335A2005-05-11. Service bulletin. POWER TRAIN. INVESTIGATION OF PUMP AREA LEAKS. *TT
33522005-05-11. Service bulletin. POWER TRAIN. SERVICE 4WD LIGHT ON WITH EITHER A VARIETY OF DIAGNOSTIC TROUBLE CODES OR NO COMMUNICATION WITH THE TRANSFER CASE CONTROL MODULE. *TT
33512005-05-11. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). INTERMITTENT MALFUNCTION INDICATOR LAMP (MIL) WITH DIAGNOSTIC TROUBLE CODE (DTC) C0374 OR ERRATIC 4WD/AWD OPERATION. *TT
33002005-04-21. Service bulletin. POWER TRAIN:DRIVELINE. 4WD MODELS WITH NOISE, VIBRATION ON DRY PAVEMENT. *EH
33092005-04-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. INVESTIGATION OF EXTENSION SEAL LEAKS ON 4L60E AUTOMATIC TRANSMISSION. *TT
32762005-04-20. Service bulletin. POWER TRAIN. 4L80E OUTPUT CARRIER THRUST WASHER CHANGES. *TT
31702004-12-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. HARSH 1-2 SHIFT. *EH
30542004-10-14. Service bulletin. POWER TRAIN. REPLACEMENT FLEXPLATE MAY HAVE LARGER BOLT HOLES THAN THE ORIGINAL FLEXPLATE. *TT
30012004-08-25. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. THE SERVICE INFORMATION AND OWNERS MANUAL DO NOT SHOW A SERVICE INTERVAL FOR THE 8.6, 9.5, 9.75, 10.5, AND 11.5 INCH REAR AXLES WITH OR WITHOUT G80 (LOCKING DIFFERENTIAL). *TT 2006 ALL GENERAL MOTORS LIGHT DUTY TRUCKS, VANS AND UTILITIES. *TT
3259C2004-03-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 4L80E, 4L85E WHINE NOISE IN FIRST AND SECOND GEAR. *TT
030417001C2003-04-17. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. WHINE NOISE FROM REAR AXLE. *TT UPDATE. *TT
020730024A2002-10-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT. DIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE. *TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *TT

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.